SOLUTION: Solve 6x - 6/x^3 = 7740

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Question 1128648: Solve 6x - 6/x^3 = 7740
Found 3 solutions by josgarithmetic, Edwin McCravy, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
What is the actual equation?

6x-6%2Fx%5E3=7740
6x%5E4-6=7740x%5E3
6x%5E4-7740x%5E3-6=0
x%5E4-1290x%5E3-1=0


OR

%286x-6%29%2Fx%5E3=7740
6x-6=7740x%5E3
7740x%5E3-6x-6=0
1290x%5E3-x-1=0

Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
6x+-+6%2Fx%5E3+=+7740
x ≈ 1290.000000000465833662910145189126235680662157...   

Edwin

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
For such problems, there is a nice online solver specially designed to find polynomial roots (zeroes)

https://www.mathportal.org/calculators/polynomials-solvers/polynomial-roots-calculator.php


Use it, and the solver will tell you EVERYTHING about the roots of this equation what you want to know.